util: async no longer needed in this file.

Author: ctalkington

lib/util/index.js

@@ -5,7 +5,6 @@
  * Licensed under the MIT license.
  * https://github.com/ctalkington/node-archiver/blob/master/LICENSE-MIT
  */
-var async = require('async');
 var fs = require('fs');
 var path = require('path');